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VRAM: Difference between revisions

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(one bank)
(Appendix A-1)
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* [[WRAM]]
* [[WRAM]]
* [[ARAM]]
* [[ARAM]]
=== Reference ===
* [https://archive.org/details/SNESDevManual/book1/page/n195 Appendix A-1] of the official Super Nintendo development manual


[[Category:SNES Hardware]]
[[Category:SNES Hardware]]

Revision as of 12:39, 16 December 2023

VRAM chip B in region B2 of the jwdonal schematic (directly above chip A)

There are two VRAM chips on the SNES motherboard, both connected to S-PPU1. They are both SRAM and each 32K x 8 bit (32,768 bytes) in size, for a total of 65,536 bytes (one bank).

One chip holds the low bytes of the 16-bit words, the other chip holds the high bytes.

The two chips can be referred to as "A" and "B", after the lines of the VRAM Data Bus VDA0~7 and VDB0~7.

See Also

Reference

  • Appendix A-1 of the official Super Nintendo development manual